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A high severity vulnerability (CVE-2026-46119) in the Linux kernel's libceph component was fixed. The flaw involved a slab-out-of-bounds access during authentication message processing, where a positive result value was incorrectly treated as an error size, leading to out-of-bounds memory access and potential leakage of memory content. The issue was resolved by correcting the interpretation of the result field and adding additional checks. This vulnerability affects numerous Linux kernel versions prior to the fixed releases. A patch is available and should be applied to mitigate the risk.

CVE-2026-46119 is a vulnerability in the Linux kernel's libceph module where a slab-out-of-bounds access occurs during processing of CEPH_MSG_AUTH_REPLY messages. If a message contains a positive value in its result field, it was mistakenly treated as an error code, causing the system to send a preallocated message with the result value interpreted as the size of the front segment to send. If this value exceeds the allocated buffer size, an out-of-bounds memory access happens, potentially leaking memory content. The patch fixes this by treating only negative values as errors and adding a BUG_ON check to prevent invalid lengths.

Detailed information about UBUNTU-CVE-2026-46119 affecting null linux. Get real-time updates, technical details, and mitigation strategies.

UBUNTU-CVE-2026-46119 - Live Threat Intelligence - Threat Radar | OffSeq.com

In the Linux kernel, the following vulnerability has been resolved: libceph: Fix slab-out-of-bounds access in auth message processing If a… (CVE-2026-46119)

To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

This vulnerability involves a slab-out-of-bounds access issue in the libceph library's handling of authentication messages. It affects Microsoft products, specifically Azure Linux 3.0. The vulnerability could potentially lead to memory corruption or related issues during auth message processing. No further technical details, CVSS score, or exploit information is provided in the source data.

Detailed information about libceph: Fix slab-out-of-bounds access in auth message processing affecting Microsoft Security Response Center Microsoft. Get real-ti

libceph: Fix slab-out-of-bounds access in auth message processing - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2026-46119 libceph: Fix slab-out-of-bounds access in auth message processing - VEX

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libceph: Fix slab-out-of-bounds access in auth message processing


In the Linux kernel, the following vulnerability has been resolved: libceph: Fix slab-out-of-bounds access in auth message processing If a… (CVE-2026-46119)CVE-2026-46119 0 A high severity vulnerability (CVE-2026-46119) in the Linux kernel's libceph component was fixed. The flaw involved a slab-out-of-bounds access during authentication message processing, where a positive result value was incorrectly treated as an error size, leading to out-of-bounds memory access and potential leakage of memory content. The issue was resolved by correcting the interpretation of the result field and adding additional checks. This vulnerability affects numerous Linux kernel versions prior to the fixed releases. A patch is available and should be applied to mitigate the risk. HighVulnerability#gcve #osv #ubuntu-cve-2026-46119 Join the discussion	GCVE Database	05/28/2026, 10:16:00 UTC Added: 07/16/2026, 10:38:29 UTC
libceph: Fix slab-out-of-bounds access in auth message processingCVE-2026-46119 0 To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle UnknownVulnerability#gcve #csaf #cve-2026-46119 Join the discussion	GCVE Database	05/02/2026, 00:00:00 UTC Added: 05/29/2026, 21:01:55 UTC

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